CN202348960U

CN202348960U - Turntable bearing for internally-installed internal gear driving devices

Info

Publication number: CN202348960U
Application number: CN201120496206XU
Authority: CN
Inventors: 陈龙; 史朋飞; 夏新涛; 邱明
Original assignee: Henan University of Science and Technology
Current assignee: Henan University of Science and Technology
Priority date: 2011-12-04
Filing date: 2011-12-04
Publication date: 2012-07-25
Anticipated expiration: 2021-12-04

Abstract

The utility model discloses a turntable bearing for internally-installed internal gear driving devices. The turntable bearing comprises a slewing bearing outer ring, a slewing bearing inner ring and a rolling element, wherein the rolling element is arranged in a roller path between the inner ring and the outer ring, the internal circumferential surface of the slewing bearing inner ring is provided with a gear, a ring-shaped housing, a driving mechanism I and a driving mechanism II, the driving mechanism I and the driving mechanism II are symmetrically arranged on the housing, the driving mechanism I and the driving mechanism II drive the slewing bearing inner ring to rotate along a same direction, the housing is provided with a step surface, and the slewing bearing outer ring is arranged on the step surface, and connected with the housing by a fastening assembly. According to the design above, the turntable bearing disclosed by the utility model is a simplified transmission mechanism, which is compact in structure, reasonable in space utilization, convenient to maintain, and can install and be connected with various driving motors. Compared with an externally-installed slewing driving device, the turntable bearing disclosed by the utility model suffers from smaller spatial size limitations, thereby expanding the application scope of the slewing driving device; and because a double-worm gear drive structure is adopted, the transmission efficiency is improved.

Description

A kind of turntable bearing of built-in interior tooth driver

Technical field

The utility model relates to a kind of turntable bearing, especially relates to a kind of turntable bearing of built-in interior tooth driver.

Background technique

Owing to simultaneously can bear bigger axial load, radial load and tilting moment, turntable bearing is widely used in the turning round equipment such as the rotation bucket device, aerial working platform vehicle device of engineering machinery, device of solar generating, excavator.Common turntable bearing is divided into internal gear type, external tooth type and no tooth-like, realizes revolution with the gear ring engagement that relies on actuation gear and turntable bearing in the turntable bearing working procedure of inside and outside tooth.A plurality of device for revolving and driving arranged that separately such device for revolving and driving has following shortcoming when conventional band tooth turntable bearing drove: assembly volume is big, installing space is bigger, has therefore limited the application area of the type device for revolving and driving; Secondly, the processing of the tooth of turntable bearing is accomplished by different manufactories with the tooth processing of pinion mate, influences the engagement of gear pair, reduces transmission efficiency and gear ring life-span greatly; In addition, independently turntable bearing and drive unit make main machine structure complicated, and installation and maintenance are loaded down with trivial details.

The model utility content

The purpose of the utility model is to be the deficiency that solves the problems of the technologies described above, and a kind of turntable bearing of built-in interior tooth driver is provided, and has advantage easy for installation, that be easy to safeguard, save installing space.

The utility model is the deficiency that solves the problems of the technologies described above; The technological scheme that is adopted is: a kind of turntable bearing of built-in interior tooth driver; Comprise pivoting support outer ring, pivoting support inner ring and be arranged on the rolling element in the raceway between the Internal and external cycle; On the inner peripheral surface of pivoting support inner ring, be provided with tooth, also be provided with the case of annular and be symmetricly set on driving mechanism I and driving mechanism II on the case, the driving rotational supporting inner ring rotation in the same way of driving mechanism I and driving mechanism II; Described case is provided with a step surface, and the pivoting support outer ring is arranged on the step surface and through fastener assembly and is connected with case;

Described driving mechanism I is made up of drive motor I, worm screw I and straight-tooth gear I; The two ends of worm screw I are arranged in the mounting hole of case through bearing; Wherein an end links to each other with the drive motor I; The axis of straight-tooth gear I and worm screw I axis normal, worm screw I and straight-tooth gear I are connected with a joggle, and straight-tooth gear I and pivoting support internal ring gear are connected with a joggle;

Described driving mechanism II is made up of drive motor II, worm screw II and straight-tooth gear II; The two ends of worm screw II are arranged in the mounting hole of case through bearing; Wherein an end links to each other with the drive motor II; The axis of straight-tooth gear II and worm screw II axis normal, worm screw II and straight-tooth gear II are connected with a joggle, and straight-tooth gear II and pivoting support internal ring gear are connected with a joggle.

The rotation direction of described worm screw I and worm screw II is opposite.

The modulus of the modulus of the modulus of the modulus of described worm screw I, straight-tooth gear I, worm screw II and straight-tooth gear II all equates with the tooth module of pivoting support inner ring.

The beneficial effect of the utility model is: the utility model is to utilize the gear on worm theory of engagement; Its structure is designed to the internal ring gear engagement of twin worm, bidentate wheel and pivoting support; Thereby make drive motor promote the worm screw rotation and drive straight-tooth gear, pivoting support, thereby drive workpiece work.This project organization is compact, has rationally utilized the space, and is easy to maintenance, can install to connect various drive motors, and be a kind of driving mechanism of simplification.Compare with the external device for revolving and driving, the present invention receives the restriction of bulk littler, has enlarged the application area of device for revolving and driving, adopts twin worm gear drive structure, has also improved transmission efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the A-A generalized section of Fig. 1.

Reference character: 1, pivoting support outer ring, 2, the pivoting support inner ring, 3, rolling element, 4, case; 401, step surface, 5, the driving mechanism I, 501, the drive motor I; 502, worm screw I, 503, the straight-tooth gear I, 6, the driving mechanism II; 601, drive motor II, 602, the worm screw II, 603, the straight-tooth gear II.

Embodiment

As shown in the figure; A kind of turntable bearing of built-in interior tooth driver comprises pivoting support outer ring 1, pivoting support inner ring 2 and is arranged on the rolling element 3 in the raceway between the Internal and external cycle, on the inner peripheral surface of pivoting support inner ring, is provided with tooth; Also be provided with the case 4 of annular and be symmetricly set on driving mechanism I 5 and driving mechanism II 6 on the case; That is to say that driving mechanism I and driving mechanism II are 180 ° of angles and are provided with on the annular case, driving mechanism I and driving mechanism II are arranged in the pivoting support inner ring and driving rotational supporting inner ring rotation in the same way, and the outside of described case 4 is provided with a step surface 401; Pivoting support outer ring 1 is arranged on the step surface 401 and is connected with case through fastener assembly and is one; Be provided with a boss in the inboard of case 4, this boss deeply is used for fixing driving mechanism I and driving mechanism II to the pivoting support inner ring, as shown in Figure 2; The case semi-surrounding the pivoting support outer ring and through bolton, the pivoting support inner ring links to each other with workpiece in the working state;

Described driving mechanism I 5 is made up of drive motor I 501, worm screw I 502 and straight-tooth gear I 503; The two ends of worm screw I 502 are arranged in the mounting hole of case through bearing; One end adopts end bracket enclosed, and the other end links to each other with drive motor I 501, and straight-tooth gear I 503 is arranged in the mounting hole of case 4 through gear shaft; The gear shaft two ends are provided with two cover tapered roller bearings; The axis of straight-tooth gear I 503 and worm screw I 502 axis normal, worm screw I 502 is connected with a joggle with straight-tooth gear I 503, and straight-tooth gear I 503 is connected with a joggle with the pivoting support internal ring gear;

Described driving mechanism II 6 is made up of drive motor II 601, worm screw II 602 and straight-tooth gear II 603; The two ends of worm screw II 602 are arranged in the mounting hole of case through bearing; One end adopts end bracket enclosed, and the other end links to each other with drive motor II 601, and straight-tooth gear II 603 is arranged in the mounting hole of case 4 through gear shaft; The gear shaft two ends are provided with two cover tapered roller bearings; The axis of straight-tooth gear II 603 and worm screw II 602 axis normal, worm screw II 602 is connected with a joggle with straight-tooth gear II 603, and straight-tooth gear II 603 is connected with a joggle with the pivoting support internal ring gear;

The utility model; Because modulus, straight-tooth gear I modulus, worm screw II modulus and the straight-tooth gear II modulus of worm screw I all equate with the tooth module of pivoting support inner ring; And the worm screw I is opposite with worm screw II rotation direction, after drive motor separately, then drives straight-tooth gear to same direction; Homodromal straight-tooth gear I and straight-tooth gear II drive the rotation of pivoting support inner ring simultaneously, improve the efficient of transmission greatly.

Claims

One kind built-in in the turntable bearing of tooth driver; Comprise pivoting support outer ring (1), pivoting support inner ring (2) and be arranged on the rolling element (3) in the raceway between the Internal and external cycle; On the inner peripheral surface of pivoting support inner ring, be provided with tooth; It is characterized in that: also be provided with the case (4) of annular and be symmetricly set on driving mechanism I (5) and driving mechanism II (6) on the case; Driving mechanism I and driving mechanism II are arranged in the pivoting support inner ring and driving rotational supporting inner ring rotation in the same way; Described case (4) is provided with a step surface (401), and pivoting support outer ring (1) is arranged on step surface (401) and upward and through fastener assembly is connected with case (4);

Described driving mechanism I (5) is made up of drive motor I (501), worm screw I (502) and straight-tooth gear I (503); The two ends of worm screw I (502) are arranged in the mounting hole of case (4) through bearing; Wherein an end links to each other with drive motor I (501); The axis of straight-tooth gear I (503) and worm screw I (502) axis normal, worm screw I (502) is connected with a joggle with straight-tooth gear I (503), and straight-tooth gear I (503) is connected with a joggle with the pivoting support internal ring gear;

Described driving mechanism II (6) is made up of drive motor II (601), worm screw II (602) and straight-tooth gear II (603); The two ends of worm screw II (602) are arranged in the mounting hole of case (4) through bearing; Wherein an end links to each other with drive motor II (601); The axis of straight-tooth gear II (603) and worm screw II (602) axis normal, worm screw II (602) is connected with a joggle with straight-tooth gear II (603), and straight-tooth gear II (603) is connected with a joggle with the pivoting support internal ring gear.
2. the turntable bearing of a kind of built-in interior tooth driver according to claim 1, it is characterized in that: the rotation direction of described worm screw I (502) and worm screw II (602) is opposite.
3. the turntable bearing of a kind of built-in interior tooth driver according to claim 1, it is characterized in that: the modulus of the modulus of the modulus of described worm screw I (502), straight-tooth gear I (503), the modulus of worm screw II (602) and straight-tooth gear II (603) all equates with the tooth module of pivoting support inner ring (2).